Dolibarr is a simple Web application with ERP and CRM capabilities. It is designed for small and medium companies, freelancers or foundations, and can be used to deal with all things you require to manage your activities, such as management of products, stocks, commercial proposals, invoices, orders, members of a foundation, and mailings. A single executable that installs the server and database
is available for people with no technical knowledge.

LedgerSMB is an accounting and ERP framework which aims to provide solid accounting, industry-leading security, and support for rapid development of business tools re-using accounting logic to support workflows of any specific business.

Adempiere is an ERP bazaar for open source developers that combines improvements from Compiere, CRM, shopfloor, POS, helpdesk, financial accounting, supply chain, knowledge, and business applications in an open and unabated fashion. Its focus is on the community.

ComUnion is software to help small and medium-sized businesses better manage their operations. It is a fully functional, open platform for Enterprise Resource Planning and Management. It follows MVC design/architecture.

Grosshandel is a professional, easy-to-use merchandise management (ERP) application for SOHO B2B companies. Grosshandel manages purchase, inventory, and sales processes. Grosshandel's enterprise level price and inventory system makes it an appropriate tool for trading firms dealing with corporate customers. With Grosshandel, enterprise features like support for international tax systems, professional unit management, and automated warehouse planning are available for SOHO users. Grosshandel adapts the operating concept of well known Mac OS X applications like iTunes. All functions share the same user interface concept. This ease of use allows you to learn Grosshandel within minutes and to process your daily business quickly and easily.

FACTORITY is a manufacturing execution system (MES). It provides the connection between the planning and the production level of production companies. FACTORITY supplies information at any time about the current production situation and so permits fast and appropriate responses to events. The result is effective and economically optimized solutions for process planning, process control, and process tracking.

Hibersap is a small framework that offers an abstraction layer on top of the SAP Java Connector (JCo). It maps Java classes to SAP function modules using Java Annotations and reduces the technical code to call a function in a SAP back-end system. Hibersap’s API is very similar to Hibernate, thus offering a familiar programming interface to developers of enterprise applications.